Index: llvm/lib/Target/ARM/ARMInstrMVE.td =================================================================== --- llvm/lib/Target/ARM/ARMInstrMVE.td +++ llvm/lib/Target/ARM/ARMInstrMVE.td @@ -3708,6 +3708,13 @@ defm MVE_VABDf32 : MVE_VABD_fp_m; defm MVE_VABDf16 : MVE_VABD_fp_m; +let Predicates = [HasMVEFloat] in { + def : Pat<(v8f16 (fabs (fsub (v8f16 MQPR:$Qm), (v8f16 MQPR:$Qn)))), + (MVE_VABDf16 MQPR:$Qm, MQPR:$Qn)>; + def : Pat<(v4f32 (fabs (fsub (v4f32 MQPR:$Qm), (v4f32 MQPR:$Qn)))), + (MVE_VABDf32 MQPR:$Qm, MQPR:$Qn)>; +} + class MVE_VCVT_fix : MVE_float<"vcvt", suffix, Index: llvm/test/CodeGen/Thumb2/mve-vabd.ll =================================================================== --- /dev/null +++ llvm/test/CodeGen/Thumb2/mve-vabd.ll @@ -0,0 +1,31 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc -mtriple=thumbv8.1m.main-arm-none-eabi -mattr=+mve.fp %s -o - | FileCheck %s + +define arm_aapcs_vfpcc void @vabd_v4f32(<4 x float> %x, <4 x float> %y, <4 x float>* %z) { +; CHECK-LABEL: vabd_v4f32 +; CHECK: @ %bb.0: @ %entry +; CHECK-NEXT: vabd.f32 q0, q0, q1 +; CHECK-NEXT: vstrw.32 q0, [r0] +; CHECK-NEXT: bx lr +entry: + %0 = fsub fast <4 x float> %x, %y + %1 = call fast <4 x float> @llvm.fabs.v4f32(<4 x float> %0) + store <4 x float> %1, <4 x float>* %z, align 4 + ret void +} + +define arm_aapcs_vfpcc void @vabd_v8f16(<8 x half> %x, <8 x half> %y, <8 x half>* %z) { +; CHECK-LABEL: vabd_v8f16 +; CHECK: @ %bb.0: @ %entry +; CHECK-NEXT: vabd.f16 q0, q0, q1 +; CHECK-NEXT: vstrw.32 q0, [r0] +; CHECK-NEXT: bx lr +entry: + %0 = fsub fast <8 x half> %x, %y + %1 = call fast <8 x half> @llvm.fabs.v8f16(<8 x half> %0) + store <8 x half> %1, <8 x half>* %z + ret void +} + +declare <4 x float> @llvm.fabs.v4f32(<4 x float>) +declare <8 x half> @llvm.fabs.v8f16(<8 x half>)